The 2006 Virginia Maintenance Code is a fully integrated custom code based on the 2006 International Property Maintenance Code. The Virginia Uniform Statewide Building Code is divided into three stand-alone parts. Part I contains regulations specific to the construction of new buildings and structures and alterations, additions and change of occupancy in existing buildings and structures and is known as the Virginia Construction Code. Part II contains optional regulations specific to the rehabilitation of existing buildings that may be used as an acceptable alternative to the Virginia Construction Code. Part II is known as the Virginia Rehabilitation Code. Part III of the Virginia Uniform Statewide Building Code contains the regulations for the maintenance of existing structures that are enforced at the option of the local governments. It is known as the Virginia Maintenance Code.